Fabric: 

311 gsm heavyweight cotton drill out shell with cotton brushed lining
Heavy duty nylon zipper. Clear ID, phone & pen pockets, two side pockets, hidden zip access to 3765 taped vest. Converts into "4 in 1" 3764 - Jacket. Embroidery access, Velcro closure. LHS internal chest pocket & cuffs. Hoop pattern generic reflective tape.